I DON"T have it, but my friend does. He swears by that racket and can't play with anything else. Funnily enough, he actually might make our Varsity HS team (we're 4th in state). No, there are no creaking noises. If you hear them, you may wish to
1) check if the buttcap is loose. If it is, take a staplegun and staple it tight
2) get a good tacky overgrip (I recommend Wilson Pro Overgrip, Tournagrip, Yonex Super Grab) and put it on

meowmix you're right, it is the grip that is making all that creaking noise. The noise is very annoying and yesterday I decided to change my current grip, Prince naturalzorb to Prince Microzorb and the noise is now gone!